PLEASE HELP WILL GIVE BRAINLIEST Solve the following system of equations using SUBSTITUTION:

x=-3y+3x=−3y+3

x-3y=-15x−3y=−15

1)4x+4y=1, 6x−y=1

x+y=4, x−y=2

x+y=−2,x+2y=2

2)2x+y=3, 2x−8y=19

Step-by-step explanation:

hope this helps

have a nice day ^_^

< 4, -5>

step-by-step explanation:

starting from g. we move 4 right and then 5 down to get to h. that means the vector is < 4, -5>

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.